lap was fell down

[Swathi CLS]

my lap was fell down and my screen is not working...what would have happened to my lap...is it possible to change mother board alone...

 

[alyoshka]

Does the laptop come on?
If it does.... try plugging in an external display and see if it works.....if it does, you might be in luck and will manage to get away with a little bit of repair work, if the LCD ain't broken or cracked....
If it is... then anything ranging from 3k to 10k is going to jump out of your wallet.